Home / 18,663.72-27,988.47-6,181.62

Finding the Fourth Proportional to 18,663.72, 27,988.47 and 6,181.62

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Solution

The fourth proportional to 18,663.72, 27,988.47 and 6,181.62 is: 9,270.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.72 : 27,988.47 = 6,181.62 : x
  2. Step 2: Convert to fraction form
    18,663.72/27,988.47 = 6,181.62/x
  3. Step 3: Cross multiply
    18,663.72x = 27,988.47 × 6,181.62
  4. Step 4: Simplify right side
    18,663.72x = 173,014,085.92
  5. Step 5: Solve for x
    x = 173,014,085.92/18,663.72
  6. Step 6: Final answer
    x = 9,270.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.